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Product Summary

Pex fitting is a type of plastic fitting. Fittings are used in pipe and plumbing systems to connect straight pipe or tubing sections, to adapt to different sizes or shapes, and to regulate fluid flow, for example. Fittings, especially uncommon types, require time, materials, and tools to install, so they are a non-trivial part of piping and plumbing systems. Valves are technically fittings, but are usually discussed separately. While there are hundreds of specialized pex fittings manufactured, some fittings are used widely in piping and plumbing systems. These fittings include elbow, reducer, tee, cross, cap, plug, nipple, barb, closet flange, clean-outs, trap primers, combo-tee, sanitary tee, double sanitary tee, wye fitting, double-tapped bushing, hydraulic fittings, etc..
Pex fittings have become very popular these days for water supply and drain lines. The low cost, good durability and easy installation has made plastic pipes most popular. Pex fittings meant for plastic pipes and for connecting plastic to metal pipes are available in various options like threaded, compression and solvent weldable types. The diameter and specification of pex fittings also vary depending on their application. For example, pex fittings with smaller diameters are used for pressure connections and they are slightly heavier and have deeper throats. Pex fittings are made from pex. Cross-linked polyethylene, commonly abbreviated PEX or XLPE, is a form of polyethylene with cross-links. Pex is formed into tubing, and is used predominantly in hydronic radiant heating systems, domestic water piping and insulation for high tension (high voltage) electrical cables. Recently, pex has become a viable alternative to polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC) or copper pipe for use as residential water pipes.